Coin Flip Online – Heads or Tails with a Fair Virtual Coin
Coin Flip
Flip a fair virtual coin for heads or tails, or flip many coins at once and see the statistics
Tap Flip coin
Quick answer
An online coin flip tosses a virtual coin and lands on heads or tails with an equal 50 percent chance. Click Flip coin or tap the coin to see the result. You can also flip many coins at once and the tool keeps count of heads, tails, the percentage of each and the longest streak.
Our free coin flip uses your browser's cryptographic random generator, so each toss is as fair as a perfect real coin and cannot be predicted. Use it to settle a decision, decide who goes first in a game or a match, or show students how probability works over many flips.
When to Use a Coin Flip
- Decide who kicks off or bats first in a match.
- Choose between two options when you cannot decide.
- Pick who goes first in a board game or video game.
- Teach probability and the law of large numbers in class.
- Make a quick random yes or no decision.
Coin Flip Odds
| Event | Chance |
|---|---|
| Heads on one flip | 1 in 2 (50%) |
| Two heads in a row | 1 in 4 (25%) |
| Five heads in a row | 1 in 32 (about 3.1%) |
| Ten heads in a row | 1 in 1,024 (about 0.1%) |
How to Use the Coin Flip
Step 1: Click Flip Coin or Tap the Coin
Click the Flip coin button or tap the coin itself. The coin spins in the air before it lands.
Step 2: See Heads or Tails
The result appears under the coin as Heads or Tails, and it is added to the row of recent flips.
Step 3: Flip Many Coins at Once
Choose 2, 10, 100 or 1,000 coins per flip to see how many heads and tails you get in one go.
Step 4: Track Heads, Tails and Streaks
The cards count heads and tails with percentages, the total number of flips and the longest streak of the same side.
Flip 1,000 coins and you will see the percentages settle close to 50 percent, a simple way to show the law of large numbers. Each coin flip is independent, so a long streak of heads does not make tails more likely on the next toss.
Is a Virtual Coin Flip Fair?
Real coins are very slightly biased towards the side that started facing up, according to research on thousands of tosses. This coin flip has no such bias: each result comes from one random bit produced by crypto.getRandomValues, which is designed for security and gives heads and tails exactly equal odds.
Coin Flip Tips
- Agree on who calls heads or tails before you flip.
- For a best of three, flip three times and count the results.
- Use the coin flip on a shared screen so everyone can see the result.
Frequently Asked Questions
Is this coin flip random?
Yes. Each toss uses a random bit from your browser's cryptographic random generator, so heads and tails each have exactly a 50% chance.
Can I flip more than one coin?
Yes. Choose up to 1,000 coins per flip in the Coins per flip menu.
What is the longest streak?
It is the highest number of times the same side came up in a row during this session.
If I get five heads in a row, is tails more likely next?
No. Every flip is independent. The next flip is still 50/50. Believing otherwise is called the gambler's fallacy.
Can I use it on my phone?
Yes. Tap the coin or the button. It works on any modern phone or tablet.
How do I reset the statistics?
Click Reset stats to set the counters back to zero.
Is the coin flip free?
Yes. It is free with no sign-up.